If you know and love Delta Green, Dark*Matter, or Call of Cthulhu, you'll get a huge kick out of Charles Stross's The Atrocity Archives, which is the most recent in a long line of reanimations and electrocardial shocks that have updated the Cthulhu mythos over the years. Mr. Stross makes the intersection of spy stuff, the IT department, bureaucratic infighting, and (oh yeah) eldritch horrors seem more than plausible, he makes it seem inevitable.

He's also the guy who invented the githyanki, githzerai, the slaad, and death knight, though that's neither here nor there. But it gives you an idea of the calibre of the man, though. I'd say roughly "elephant gun".